"""
此代码仅用来测试运行模块中的相关功能
"""

# import time

# if __name__ == "__main__":
#     i = 0
#     while(True):
#         print("hello", flush=True)
#         time.sleep(1)
#         # asyncio.sleep(1)
#         i += 1 
#         if i == 9:
#             raise ValueError("出错了")

